How many movies have Ron Koenekoper and Sonny Spaan collaborated on?

They have worked on 1 movie together! Their first movie together was Pieter Tiddens: Vooruit! Nog Één Keer Kindercabaret, Nu Nog Anders! (2009) and was their highest rated movie together. They have not worked together since Pieter Tiddens: Vooruit! Nog Één Keer Kindercabaret, Nu Nog Anders! (2009).